Red Stains and Dyes and Indicators

Methyl Red, pure, indicator, ACROS Organics™

Chemical Name or Material: Methyl Red CAS: 493-52-7 Purity Grade: Pure Molecular Formula: C15H15N3O2 Linear Formula: (CH3)2NC6H4N=NC6H4CO2H Formula Weight: 269.3 Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid

Quinaldine red, pure, ACROS Organics™

Chemical Name or Material: Quinaldine red Name Note: Pure CAS: 117-92-0 Purity Grade: Pure Molecular Formula: C21H23IN2 Formula Weight: 430.32 MDL Number: MFCD00011968 Synonym: 2-[4-(Dimethylamino)styryl]-1-ethylquinolinium iodide

Methyl Red, sodium salt, indicator, pure, ACROS Organics™

Chemical Name or Material: Methyl Red, sodium salt Name Note: pure CAS: 845-10-3 Purity Grade: Extra Pure Molecular Formula: C15H14N3NaO2 Linear Formula: (CH3)2NC6H4N=NC6H4CO2Na Formula Weight: 291.27 MDL Number: MFCD00002426 Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid, sodium salt

Eosin B, Certified, Pure, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Eosin B Name Note: Pure CAS: 548-24-3 Purity Grade: Pure Molecular Formula: C20H6Br2N2Na2O9 Formula Weight: 624.06 MDL Number: MFCD00005041 Synonym: 4', 5'-Dibromo-2', 7'-dinitrofluorescein

Bordeaux R, pure, ACROS Organics™

Chemical Name or Material: Bordeaux R CAS: 5858-33-3 Purity Grade: Pure Molecular Formula: C20H12N2Na2O7S2 Formula Weight: 502.41 MDL Number: MFCD00003887 Synonym: 3-Hydroxy-4-(1-naphthylazo)-2, 7-naphthalenedisulfonic acid, disodium salt

Congo Red, 0.1% Aqueous Solution Products for Science Education

Chemical Name or Material: Congo Red, 0.1% Aqueous Solution CAS: 573-58-0 CAS: 7732-18-5 Assay Percent Range: <1% w/v

Erythrosin B

Chemical Name or Material: Erythrosin B CAS: 568-63-8 Molecular Formula: C20H6I4Na2O5 Formula Weight: 879.87 MDL Number: MFCD00144257

Para Red, Dye Content ca 95%, ACROS Organics™

Chemical Name or Material: Para Red CAS: 1647520 Purity Grade: Extra Pure Molecular Formula: C16H11N3O3 Formula Weight: 293.27 MDL Number: MFCD00003908 Synonym: 1-(4-Nitrophenylazo)-2-naphthol

Methyl Red, Sodium Salt (Certified ACS), Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Methyl Red, Sodium Salt CAS: 845-10-3 Purity Grade: Certified ACS Grade Molecular Formula: C15H14N3O2Na Linear Formula: 4-(CH3)2NC6H4-N:N-2-(CO2Na)C6H4 Formula Weight: 291.28 MDL Number: MFCD00002426 Synonym: Acid Red 2, Sodium Salt

Cresol Red sodium salt

Chemical Name or Material: Cresol Red sodium salt CAS: 62625-29-0 Molecular Formula: C21H17NaO5S Formula Weight: 404.42 MDL Number: MFCD00001618

Sudan Red 7B, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Sudan red 7B CAS: 6368-72-5 Molecular Formula: C24H21N5 Formula Weight: 379.45 MDL Number: MFCD00003904 Synonym: C.I. 26050

Eosin B (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Eosin B CAS: 548-24-3 Purity Grade: Certified Biological Stain Molecular Formula: C20H6Br2N2O9Na2 Formula Weight: 624.09 MDL Number: MFCD00005041 Synonym: Acid Red 91

Nuclear Fast Red, 94%, pure, ACROS Organics™

Chemical Name or Material: Nuclear Fast Red CAS: 6409-77-4 CAS Min %: 92.0 CAS Max %: 100.0 Purity Grade: Pure Assay Percent Range: 94% Molecular Formula: C14H8NNaO7S Formula Weight: 357.26 MDL Number: MFCD00078493 Synonym: C.I. 60760

Alizarin Red S, pure, certified, ACROS Organics™

Chemical Name or Material: Alizarin Red S CAS: 130-22-3 Purity Grade: Pure Molecular Formula: C14H7NaO7S Formula Weight: 342.26 MDL Number: MFCD00013049 Synonym: 9, 10-Dihydro-3, 4-dihydroxy-9

Methyl Red, Free Acid (Certified), Fisher Chemical

Chemical Name or Material: Methyl Red, Free Acid CAS: 493-52-7 Purity Grade: Certified Grade Molecular Formula: C15H15N3O2 Linear Formula: 4-(CH3)2N-C6H4-N:N-2-(CO2H)C6H4 Formula Weight: 269.3 MDL Number: MFCD00002425 Synonym: Acid Red 2

Fast Garnet GBC Base 97%, ACROS Organics™

Chemical Name or Material: Fast Garnet GBC base Name Note: 97% CAS: 97-56-3 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C14H15N3 Linear Formula: NH2C6H3(CH3)N=NC6H4CH3 Formula Weight: 225.29 MDL Number: MFCD00007733 Synonym: 2-Aminoazotoluene

Eosin Y, pure, certified, ACROS Organics™

Chemical Name or Material: Eosin Y CAS: 17372-87-1 Purity Grade: Pure Molecular Formula: C20H6Br4Na2O5 Formula Weight: 691.85 MDL Number: MFCD00005040 Synonym: 2', 4', 5'

Congo Red, Indicator grade, ACROS Organics™

Chemical Name or Material: Congo Red CAS: 573-58-0 Purity Grade: Indicator Grade Molecular Formula: C32H22N6Na2O6S2 Formula Weight: 696.66 MDL Number: MFCD00004028 Synonym: C.I. 22120

Methyl Red, ACS reagent, ACROS Organics™

Chemical Name or Material: Methyl Red Name Note: Pure CAS: 493-52-7 Purity Grade: ACS Reagent Grade Molecular Formula: C15H15N3O2 Linear Formula: (CH3)2NC6H4N=NC6H4CO2H Formula Weight: 269.3 MDL Number: MFCD00002425 Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid

Methyl Red hydrochloride, ACS reagent, ACROS Organics™

Chemical Name or Material: Methyl Red hydrochloride CAS: 63451-28-5 Purity Grade: ACS Reagent Grade Molecular Formula: C15H15N3O2·HCl Linear Formula: (CH3)2NC6H4NNC6H4COOH·HCl Formula Weight: 305.76 MDL Number: MFCD00012614 Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid hydrochloride

Phenol Red, Indicator, ACROS Organics™

Chemical Name or Material: Phenol Red CAS: 143-74-8 Purity Grade: Extra Pure Molecular Formula: C19H14O5S Formula Weight: 354.38 MDL Number: MFCD00003552 Synonym: Phenolsulfonephthalein

Nile Red 99%, ACROS Organics™

Chemical Name or Material: Nile Red Name Note: 99% CAS: 7385-67-3 CAS Min %: 98.5 CAS Max %: 100.0 Purity Grade: Extra Pure Assay Percent Range: 99% Molecular Formula: C20H18N2O2 Formula Weight: 318.38 MDL Number: MFCD00011639 Synonym: Nile blue A oxazone

Methyl Red Sodium Salt, Reagent ACS, ACROS Organics™

Chemical Name or Material: Methyl Red, sodium salt Name Note: Pure CAS: 845-10-3 Purity Grade: ACS Reagent Grade Molecular Formula: C15H14N3NaO2 Linear Formula: (CH3)2NC6H4N=NC6H4CO2Na Formula Weight: 291.27 MDL Number: MFCD00002426 Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid, sodium salt

Bromophenol Red, pure, ACROS Organics™

Chemical Name or Material: Bromophenol Red CAS: 2800-80-8 Purity Grade: Pure Molecular Formula: C19H12Br2O5S Formula Weight: 512.19 MDL Number: MFCD00023014 Synonym: 5', 5''-Dibromophenolsulfonphthalein

Sudan IV (Certified Biological Stain), Fisher Chemical Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Sudan IV CAS: 85-83-6 Purity Grade: Certified Biological Stain Molecular Formula: C24H20N4O Formula Weight: 380.45 MDL Number: MFCD00003893 Synonym: Lipid Crimson

Methyl Red Indicator Products for Science Education

Chemical Name or Material: Methyl Red Indicator CAS: 845-10-3 Linear Formula: C15H14N3O2Na Formula Weight: 291.28 Synonym: Methyl Red In Alcohol

Eosin Y (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Eosin Y CAS: 17372-87-1 Purity Grade: Certified Biological Stain Molecular Formula: C20H8Br4O5 · 2 Na Formula Weight: 691.85 MDL Number: MFCD00005040 Synonym: Acid Red 87

Alizarin Red S sodium salt, 1% w/v aq. sol., Alfa Aesar™

Chemical Name or Material: Alizarin Red S sodium salt CAS: 130-22-3 Physical Form: Liquid Molecular Formula: C14H7O7SNa MDL Number: MFCD00013049

Chlorophenol Red, Water Soluble, ACROS Organics™

Chemical Name or Material: Chlorophenol Red, sodium salt CAS: 123333-64-2 Purity Grade: Pure Molecular Formula: C19H11Cl2NaO5S Formula Weight: 445.25 Synonym: 3', 3''-Dichlorophenolsulfonephthalein, sodium salt

Eosin B, pure, high purity, biological stain, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Eosin B CAS: 548-24-3 Purity Grade: Pure Molecular Formula: C20H6Br2N2Na2O9 Formula Weight: 624.06 MDL Number: MFCD00005041 Synonym: 4', 5'-Dibromo-2', 7'-dinitrofluorescein

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